In the U.K., a record fine for Barclays Plc has triggered outrage from lawmakers and forced resignations from the bank’s top executives. In the U.S., Wall Street’s defenders in Congress are sticking by the industry

Barclays Plc Chief Executive Officer Robert Diamond was urged by U.K. Prime Minister David Cameron to show accountability after the bank was fined $451 million for attempting to manipulate the inter-bank lending rate, known as Libor.